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Marquise|Natural|GIA

0.51ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 1563006873

Certificate GIA 1563006873

Diamond specifications and retailer prices

From $721 CAD
₹49,175 INR
As of November 2, 2026
Save $1,537 CAD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,293 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563006873. Listed at 13 retailers as of November 1, 2026, with a 213% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563006873
Dimensions7.73 × 4.18 × 2.66 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.73 mm4.18 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1563006873
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,293 CAD|Low: $720 CAD|High: $3,293 CAD|Avg: $1,326 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 2$721 CAD
Retailer 5$1,298 CAD
Retailer 13$1,447 CAD
Retailer 4$1,499 CAD
Retailer 7$1,604 CAD
Retailer 12$1,658 CAD
Retailer 9$1,798 CAD
Retailer 11$1,893 CAD
Retailer 10$1,956 CAD
Retailer 3$2,074 CAD
Retailer 6$2,207 CAD
Retailer 8$2,259 CAD
MOH London$3,293 CAD

42 data points across 13 retailers

13 retailers$721 CAD to $2,259 CAD

A
Cheapest Retailer
-
$721 CAD
₹49,175 INR
B+
Retailer 2
-
$1,298 CAD
€885 EUR
View
B
Retailer 3
-
$1,447 CAD
£816 GBP
View
B
Retailer 4
-
$1,499 CAD
ZAR 17,333 ZAR
View
B
Retailer 5
-
$1,604 CAD
$1,148 USD
View
B
Retailer 6
-
$1,658 CAD
$1,187 USD
View
Final sale: no returns
B
Retailer 7
-
$1,798 CAD
$1,287 USD
View
B
Retailer 8
-
$1,893 CAD
$1,355 USD
View
B
Retailer 9
-
$1,956 CAD
$1,400 USD
View
B
Retailer 10
-
$2,074 CAD
$1,485 USD
View
B
Retailer 11
-
$2,207 CAD
£1,244 GBP
View
B
Retailer 12
-
$2,259 CAD
$1,617 USD
View
Most Expensive
MOH London
EC3822ECD · Nov 1
$3,293 CAD
£1,856 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $721 CADSave up to $1,537 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Marquise
$721 CAD